Improve fairness with adaptive RIO for assured service in DiffServ networks

Author

Liu, Wei ; He, Jianhua ; Le, Chunhui ; Yang, Zongkai ; Chou, Chun Tung

Author_Institution

Dept. of Electron. & Inf. Eng., Huazhong Univ. of Sci. & Technol., China

Volume

1

fYear

2002

fDate

29 June-1 July 2002

Firstpage

680

Abstract

RIO is the primary queue management mechanism used in DiffServ networks. However, it is analytically proved that it is necessary to adaptively adjust the maximum dropping probability of OUT packets to ensure per-flow fair share of excess bandwidth. in this paper, we propose and implement an enhanced version of RIO, called Adaptive RIO (ARIO), to improve the fairness among different TCP flows. Simulation results show that ARIO can effectively improve per-flow fairness of RIO. It is also observed that ARIO can also improve the throughput utilization of the bottleneck link in different communication environments.

Keywords

Internet; adaptive systems; digital simulation; packet switching; quality of service; queueing theory; transport protocols; ARIO; Adaptive RIO; DiffServ networks; IP networks; Internet; OUT packets; QoS; TCP flows; adaptive RIO; assured service; fair bandwidth sharing; fairness improvement; maximum dropping probability; per-flow fairness; quality of service; queue management; simulation results; throughput utilization; Australia; Bandwidth; Diffserv networks; Engineering management; Intelligent networks; Quality of service; Technology management; Telecommunication traffic; Throughput; Traffic control;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems and West Sino Expositions, IEEE 2002 International Conference on

Print_ISBN

0-7803-7547-5

Type

conf

DOI

10.1109/ICCCAS.2002.1180708

Filename

1180708